Controlling system for receiving apparatus.



APPLICATION FILED NOV. 9, 1913.

Patented Mar. 19

I 191& 2 sHEgTs-SHEET f la tto'cmma 7 j A. D. CARDWELL.

1,259,835. Patented Mar.19,l9l8.

. v 2 SHEETS-SHEEIZ- line, to effect; the operations stated.

in the main ling -and the operating relays ALLEN l3. GARDWELL, 0F BRQOKLYN, NEW YORK.

CQNTLROLLIIIG SYSTEM FOR RECEIVING APPARATUS.

Specification of Letters Yatent.

Patented Mar. 19, 1918.

Application filed November 19, 1913. Serial No. 801,813.

To all whom it may concern:

. Be it known that l, ALLEN D. CARDWELL, a. citizen of the United States, and resident of New York city, borough of Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Controlling Systems for Beeeivii'ig Apparatus, of which the following is a s iecilication.

The object. of my invention is to provide an electrical controlling system adapted to operate by impulses sent over a main line, whereby the breaks and makes or the reversal of polarity of the impulses on the mainline may be utilized in succession in the operation of my improved system, wherein the circuits are made and broken upon the. operation of the armature of a linerclay By means of my improvements I am enabled, by the. use of a relay in a normally closed line, upon a break in such line, to utilize the lirst make or break of the line,

or the first reversal of polarity of the line battery, to cause the operation of an operating-relay, also to prepare a circuit through a second operating-relay, and also to prepare a. circuit for athird operatingrelay directly upon the interruption of the firstlinc action; upon the second line action the second-named operating-relay is energized; upon the third line action the third named operating-relay is energized, and a circuit through a fourth operatingrelay is prepared, and directly upon the interruption. ofsaid third line action a circuit t'or a li'lth o erating-relay is prepared; upon the fourth line action the fourth named operating-relay is energized, and so on for as many operating relays as desired, and then directly upon the interruption of the lastline action of a predetermined number of such actions the operation is caused of signaling or other operating devices of the. system for the production of the required work, such as the operation of a aph l V]')t.\Vllt(.ll, and the restoration oi all i. c circuits and devices to normal.

in the foregoing-statcment it will be understood that l may utilize makes and breaks, or reversals of current, in the main In the example.- illustrated in Figures 1 and 2 of the accompanying drawings the main lineis adapted to be oporated'by breaks and makes illustrated in Fig. 1 are intended to operate only upon a long signal on the line, so that the magnets of their corresponding sclective devices. the circuits of Which are controlled by said operating relays, will not be energized by reason of short signals on the line.

While I have referred to a line signal as a make or a break, it is to be understood that the main line relay armature, in the example illustrated, in Fig. 1, first moves to close certain circuits and partially establish one or more other circuits, and that while the armature is away from such position (after having reached such position in operation) it causes the operation of one of the circuits it established on its preceding engagement of contacts.

My improvements may be established in connection with ordinary telegraph lines, without alteration of the same, other than by providing suitable means for operation of the line relays of my improvements on such lines. It will be understood that any suitable transmitting mechanism may be provided for sending the rcquired'tg'gnals over the line to operate the line relay of my improved controlling system, 1

Referring more particularly to the accompanying drawings, Fig. 1 diagrammatically illustrates my improved system;

Fig. 2 is a, detail diagrammatic illustration showing a local circuit for controlling contacts 6, 7 and 21;

Fig. 3 is a similar view illustrating a polar relay controlled by the reversal of current in the main line, and 1 Fig. 4i is a diagrammatic detail illustrating the main line comprising two Wires as" hereinafter referred to.

The letter a. indicates a main line, whicl may comprise a normally closed telegraph line, having a relay 7), line a. being shown grounded at 0. At 1, 2, 3, 4 and are re lays, the circuits of which are adapted to be controlled by the armature b of relay 1) which may be in the main line (Fig/ 1), or in a local circuit controlled by the armature a of main line relay a, as'illustratcd in Fig. 2. Said armature is shown con-' nectcd with one terminal of a local/battery (Z, through Wire 32, armature F and normally closed contact 31, the opposite terminal of which battery is rounded at 6. 11

Contact 6 is in the circuit or corres 0ndmg terminals of the relays 1, 3, 5mm contact 7 is in the circuit for the corresponding terminals of relays 2 and 1, the opponected with armature D of relay D, held normally by its sprin against the contact 11, which is connected by wire 12 w th the armature B of relay B, which armature normally engages contact 13 connected by wire 14; with relay 1. By this means the circuit for the'relay 1, through battery (Z, is established upon the first break of a series of makes and breaks in main line a, by the closing of armature l) against contact (3. Thereupon, it the break in the main line a be long, relay 1 will operate, according to the example herein described. Contact 7 is connected with .wire 15 which includes a variable impedance 16, which wire leads to armature C of relay C, which armature is held by its spring normally against contact 17 connected by wire 18 with armature A of relay A. Armature A is normally out of contact with, but is adapted to engage, a contact 19 connected by wire 20 with a terminal of relay 2, but the cir-' cuit of said relay is normally broken at 19, notwithstanding that armature 7) normally engages contact 7. When the line a is first broken, armature B is moved by its spring, not only to close the local circuit from the battery through relay 1, but also to close a circuit for shifting magnet. A, to cause the latter to close a contact in the circuit of relay 2 at A 19, as follows A contact 21, adapted to be engaged by armature b is connected with wire 22 which connects with armature D of relay D, which armature is normally in engagement with contact 23 that is connected by wire 21- with armature B of relay B. Armature B normally engages contact 25 that is connected by wire 26 with a terminal of relay A, the opposite terminal of which relay is connected through a resistance to ground 27. lVith the arrangement so far described, when the first break occurs in main line (4, and the armature I) of the main line relay engages contacts 6 and 21, the circuit of battery 0? will be established through relay 1 as before described, and at the same time the circuit for relay A is established from battery d, through armature 6, contact 21,

"through 22, D 23, 2 1, B 25, 26 and relay A to ground 27. Said relay thereupon attracts its armatures A and A, and armatime A closes the circuit at 19 for relay 2 to contact 7, from ground f, through 8, 2, 20, 19, A 18. 17, (d 16 and 15 to 7, while armature A engages contact 28, establish ing a holding circuit for saidrelay A, which holding circuit includes relay B, but said holding circuit is not energized until arma- Z) breaks circuit at 21. Upon such break at 21 current will flow from battery (I, through 32, armature F of relay F, contact 31, wire 30, contact 28, wire 29, relay B, wire 26, through relay A and resistance to ground 27. Belay B was not energized when contact was made by armature A at 28 because of the shunt around relay B comprising circuit it'rom contact 25, connected to one terminal of B, armature BF, wire 22+, contact 23, armature D wire 22. contact 21. armature 7), wire 30, armature A, contact 28, wire 29 to the other terminal of relay B. As soon, however, as the main line ais closed and relay 7) attractsarmature b, the movement of said armature from contact 21, causes a break in the circuit of relay A at 21, and removes the shunt from relay B, but circuit is maintained through relay A and established through relay B from battery 03 through '32, F, 31, 30, A, 28, 29, B, 26 and A to ground 27, holding the circuit closed for relay 2, at A, 19, and cansing magnet B to attract its armatures, thus breaking the circuit of relay 1 at 13 and closing a contact in the circuit for relay 3 by the engagement of armature B with contact 33, through wire 36L to a terminal of relay 3, while at the same time armature B closes a circuit at contact 35 through wire 36, and relay C to ground 37, but which is still open at 21, Z). When armature 6 moves, as stated, from contacts 6, 21, the above described actions take place,

namely, the breaking of circuit through relay 1, the holding of switching relay armatures A, A in operated position and the operation of relay B, which all remain set until final release, as hereinafter explained. As soon as armature I) engages contact7, current will flow from battery (Z through armature I), contact 7, wire 15, armature C contact 17, wire 18, A 19 and 20 to relay 2, causing the latter to operate if the signal be long. It may here be stated that if the engagement of armature b with contacts 6 and 7 be long the relays -1, 2, 3, 4, 5, controlled through said contacts, willbe operated, but if such engagement be short the relays 1, 2, 3, 4 or 5 will not be operated on account of the character of said re lays and the impedance 10 and 16. Uponthe next break in line a, armature Z2 moving to contacts 6 and 21, completes the circuit for relay 3 from battery at, through 5, 6, 9, D, 11, 12, B, 33 and wire 34 to a terminal of relay 3, operating the latter if the break be long, and armature 6 includes f til contact at 21 is broken.

a circuit from batteryd through 21, 22, D 23, 24, B 35, 36 and relay C, to ground 37, whereupon armatures C and C of relay C are operated. Armature C switches the circuit of contact 7 from relay 2 to relay 4; at contact 38, through wire 39, and armature C prepares a holding circuit for relay C and an operating circuit for relay D at contact 40, through wire 11, D, 42, C and .resistance to ground 37. It will be under stood that this circuit is not energized un- Tlhis is in all respects similar to the corresponding operation of relays A and B. i

As soon as line a is again closed and armature 6 leaves contacts 6 and 21, relay D will be immediately energized, breaking the circuit from contact 6 to relay 3 by the movement of armature D, and connecting said contact 6 to relay 5 through contact 43 and wire 44. The operation of armature D of relay D also breaks the'circuit of contact 21 at 23, and connects contact 21 in circuit with relay E at contactlti, through Wire 4:6, with an effect similar to that described with respect to relays A and B. l vhen armature I) now engages contact 7, circuit for relay 4 is vestablished from battery OZ, through 5), 7, 15,

C 88 and 39, through relay 4 to ground 8, and said relay will operate if the make in the main line be long. Upon the next break in the main line a, armature b engages con and closes contact at 31.

" aerated relay. Such holding circuit is estab- "lished upon the breaking of contact 1*, 2*, 3

tacts 6 and 21, and thereupon a circuit is established through relay 5 from battery (Z, Z) 6, 9 D, 43, 44; and terminal of relay 5 to ground f, operating said relay it said signal be long. A circuit is also then established for relay E, from battery d, b 21, 22, D 45, 46 and Eto ground g. Relay E thereupon attractsjits armature E which is 46, and relay E will be retained energized through the circuit just described after armature 6' next breaks contact at 21. As soon as armature b breaks circuit with contact 21, as stated, relay F will be energized through E to ground or [Armature F now breaks contact at 31, breaking the holding circuit of relays A, B, C and D, thereby restoring their armatures to normal positions,

The effect of closing circuit at F", 31 will be described hereinafter. The effect of the operation of one or more of therelays 1, 2, 3, l, 5, which occurs before the operation of armature F, is asfollows: When any of said relays are operated their armatures serve to establish a holding circuit for the corresponding op and the making ofcontact at 1, 2, 3, as well asat 4, 5, providing a holding circuit through the corresponding magnet 1 2, 3 4, or 5, and the relay H, from battery 03, wire 32, armature L, normally closed con tact 49, through the operating winding of relay H, wire 50, through any one of the back contacts 1", 2*, 3 and thence through the corresponding armature 1*, 2, 3 to 51, thence through any one of such armatures that was operated to its corresponding contact 1, 2, 3. and through the corresponding magnet 1 2 or 3, thence, through such op crated relay and wire 8 to ground thereby holding the relay closed'and ener izing its corresponding electro-magnet 1, 2 or 3, and if one of the armatures 4 or 5* had been energized its armature closed circuit at 4 or 5, through the corresponding relay 4 or 5. In the latter case relays I and J would also provide circuit as follows: Assume that relay i is energized, then the circuit will be from battery (Z to the relay H as described, to wire 50 and wire 52 directly to armature 4 thence through 4, magnet 41 wire 53, relay I, wire 5%, through relay l and wire 8 to ground 7', thereby holding relay 4 in operated position and energizing magnet L and relay I, the latter for a purpose to be de scribed; and if relay 5 had been operated the circuit would have been established through relay H, as last described with relation to relay H, and Wire 50 to 52, thence through armature 5", contact 5 and magnet 5 through wire 55, relay J, thence through relay 5 to wire 8 and ground f. The effect of the operation of relay J will be described. When either one of the magnets 1 2, 3, 4 01'5 is operated it Will cause the operation of mechanism controlling a type wheel to bring its desired type to the printingposition, in the example under consideration. A suitable iorm of printing telegraph apparatus, adapted to be utilized in conjunction with the magnets 1, 2 3 4, 5,- is set forth in my application for improvements in tclegraph typewriters, filed April 10, 1915, Sorial No. 20386, and wherein magnets corre sponding to those lettered M N (l P Q R S T, in Fig. 1 of the accompanying drawings, are disclosed adapted to perform the functions hereinafter referred to with respectto said magnets. It will be under stood that according to the character of the series of main line signals for the produo tion of any work of the typewriting niachine, the operation of one or more of the relays l, 2, 3, 4: and 5 controls the position of desired type upon the type wheel for printing. Where an operation of the type wheel is not necessary, for word spacing, the character of signals on line a Will be such as not to operate either relays 1, 2, 3, t or 5, such as a succession of short signals. Under such conditions, when relay F is energized, as before explained, and its armature F closes circuit at 31 a circuit will be established as follows: from battery (2, 3'12, F 31 throu h clearing rela Y L armature W1 v 2: 7 r (J normally closed contact 62, Wirearmature H, normally closed contact 3:, Wire 65, through release in. t S, i-acino magnet R and. alining inagaot Q to grounn f. Relay H will not new be c ted. 'l

cl'lcct of any ope tion of fell 0 magnet S is to bring the type Wheel to nrrnial tion it it has been previously ted to a figure printing position, and the is for the purpose of advancing the paper carriage one step forward, as between WOIClS. Relay L is so timed that, after magnet-s S and B have performed their functions, the armature L will be attracted and break the holding circuit of relays E and F, at 49, thereby causing their arinaturcs return to normal. [is soon illllltttlile ll" breaks contact with 31, circuit tn'ou h re lay L and magnets i} and ll is broken and they are restored to or permitted to resume their normal positions, and then all the parts will be in the positions shown in the drawin The effect of clearing; line when any one of the magnets to, O, P,

and T, (as Well as ll and have been operated for any purpose will h hereinafter stated.

It will be understood that'in accordance with the operation of one or more of the relays l, 2, 3, 4; or according to a predotermined code or combination of". signals, the desired position of the type Wheel will be produced. Assuming that any one or more of the relays 1,2, 3, 4-, except 1, 9, 3 in succession, have been energized. closing its armature against its correspondin contact 1 ,2, 3, at, b current will flow from battery d, Wire 32, L, 49, through the operating Winding of relay H, and thence through 50 and the first named relay or lee-- relays operated and its corresponding tron'iagrnet to Vllo 8 and ground f. relay ll now attracts its armature breaks contact at 64: and makes contact at ('36, thus providing a circuit from battery 55 l d ,fioW from battery (2, 32, L, 4-9, relay lrl,

through the operating Winding Or any Wire 51, to the arinatures of relays 1, E2, 3

through their corresponding magnets l 3, and through the relrziys It, i2, 3 8 and ground at f. As soon rt energised its armature o: bread.

flow from cattery (1, through Wire 32,

6'2 and malice eircu it, so when rclay i1 has been 0 illictl currei'it 'Wlll. then armature l contact 3 1, through relay L, :illllitture G, thr-or ""1 contact [31, llOltllll f Windn l oi rein} t Wire (-0. tnence through ough come 57 or 58 (achcv relay 5 has been operiot been operated), thence through wire oil or I39 to arinature' lt or P stood that soon lays l, 3, have been opcraicrelay tr will be (iIlQlQlZQCl,

before Sl'u'ul, and His a circuit at contact and then when relay i operates, w ll he cncrgi'fed, al'traetin its aurl and i contacts Q t, 9; contacts at and 0, and when 5 now open, relay J will be en gizccd, shifting armature J from contact to contact 553,

tzlllll when relay 1* becomes energized current will be supplied through Wire ari'ruiture l contact 81 relay L, armature (,l, contact 61, l" )lding windingof relay (l, Wire 60, armature J, contact 58, \VllQ armamre 1 contact 0, through magnet O to wire 8 and ground and then oyilerating" magnet Q. is soon as O has perilornied its function relay L Will attract its armature L and break the holding circuit of E and F atll), previously de- (according to Whether relay l scribed, restoring E and F to norinal.-

Likewise, when armature It has been. restored to normal, relays L, G, H, 5, I, l, 2, 3, t, 5 and magnets '11, 2, will be restored to their normal positions. FY0111 the foregoing it will be understood that a success on of impulses, such as to operate the relays A, B, C, l E and F but not to operate relays 1, 2, 3, l, and 5, will have the ellect of operating magnets fl and R, and Q in multiple with R, thereby re 7 ing and spacing as previously described. A succession of signals, such as cause the operation of one or more of relays 1, 2, 3, and 5 (except 1, 2 and in succession) will. have the eliect of moving the type Wheel to a printing; position and energizing i'l-iagnets T, and Band Q in multiple, thereby locking the type Wheel in printing position, causing printing, and also spacing of the carriage. Any succession oi impulses to ell'ect operation or relays l, 2 and 3 in cliect the operation of. magaccording to Whether rare not been energi. or

4: has been energized alone without. 5, or 5 has been energized without 4, or 4: and 5 have been energized together. Magnets M, r

N, O and P are, in the example, assumed to control devices as follows: M for line spacing; X for returning the carriage to initial position; 0 for back spacing of the carriage, and P for shifting the type wheel to'figure position. The magnet Q, which always operates in multiple with the word spacing magnet R, is for the purpose of holding the type wheel in rigid alinement, while magnet T is causing printing. Magnet S, when operated, restores the type wheel to its normal position, if it has previously bee shifted to figure position. Further detailed description of the operation of the magnets above named will be found in my aforesaid application Serial No. 20886.

In accordance with my improvements, I am enabled to provide a circuit for one of the operating relays instantly to be ready to be operated upon an appropriate signal on the main line, such as a break in such line, and then prepare a circuit for a second operating relay, which will be available the instant the first signal has been succeeded by another on'thc main line, and also to prepare a circuit for the third signal as soon as the first signal has been succeeded, which is effected as soon-as armature 6 leaves contact 21; a similar switching is performed for as many impulses as are necessary to perform the required workings, so that upon the final movement of armature b from contact 21, and While said armature is moving toward its normal position, as upon the closing of the line at the terminations of a series of signals thereon, all the circuits preyiously established through the medium of such armature are caused to perform their operations, and are'restored to normal. It will be observed, therefore, that the time of switching from one such armature stop .to another is utilized during the time that armature b is moving to or is at rest on a contact for an operating relay of its cir-' cuit previously established by the preceding signal on the main line, and that a circuit for an operating relay is prepared before the armature 6 reaches the corresponding contact 6 or 7, thus savingtime in the operation of the system.

While I have shown in Fig. 1 a single wire a'constituting a main line controlling relay '11 whose armature closes the circuit at contacts 6, 7 and 21, according to whether the line' is opened or closed by a transmitter- 011 the line, it will be readily understood that relay Z1 canbe in the form of a polarized relay (1 actuated by a reversal of polarity on the main line for controlling relay b, illustrated in Fig. 3, or contact 21 can' be controlled by a relay a; on one wire it,

said relay havingarmaturcs controlling contacts 6, 7 and 2l,and the circuits through contacts 6 and 7 can be controlled at contact g by a relay 3 on another wire yQSaid two wires constituting the main line, the flow of current on each such wire being controlled separately, as illustrated in Fig. i, thus obviating the necessity of having the relays'l, 2, 3, at and 5 operating only on long impulses. Hence, by the term main line I mean a line between stations comprising one or more wires, and by the term devices controlled by signals on the main line, or

the term a controlling relay controlled by of signals on both wires 0:, 3 The relays 1, 2, 3, l, 5 may be considered to be agroup of operatingor selective relays, which group has a plurality of sections, comprising a plurality of relays 1, 2, 3, in one section and a plurality of relays 4t, 5, in another section; a second group of relays may be considered the relays H and G, relay H being controlled by individual relays of the first'group and relay G being controlled by the collective action of one section of relays of the first group, such as the relays 1, 2, 3, and a third group of relays may be considered such as relays E and F, the relays of the third group causing circuits to be utilized as organized by the operationof relays of the first group, which relays of the third group together control. the time for actual completion-of the circuits through the inagnets M N O P Q R S T, the relay F controlling the time during which the circuit is completed through said magnets and also controlling the time during which thecircuits of the relays 1, 2, 3, l, 5 areirendered inoperative after the operation of said magnets.

Having nowdescribed my invention what I claim is :1

1. An electric circuit controlling system comprising a plurality of operating relays, normally open circuits therefor, a" main line, and devices, including a main line relay for causing the operation of one'of'said operating relays, preparing the circuit for a second operating relay, and partially preparing a circuit for a third. operating relay upon a single operation of the main line relay.

2. An electric circuit controlling system comprising a plurality of operatingrelays, normally open circuits therefor, a main line, and devices for causing the operation of one of said operating relays, preparing the circuit for a second'operating,relay, and

partially preparing a circuit for a third operating relay upon a single operation of said devices, said devices serving to break the circuit of the first named operating relay, and partially complete the circuit for the third named operating relay upon the commencement of a second operation of said devices.

3. An electric circuit controlling system comprising a plurality of operating re.- lays, Working magnets associated With said relays, normally open circuits therefor, a main line, and devices for causing the operation of one of said operating relays, preparing the circuit for a second operating relay, and partially preparing a circuit for a third operating relay upon an initial operation of said devices, said devices serving to break the circuit of the first named operating relay, and partially complete the circuit for the third named operating relay upon the commencement of a second operation of said devices, said devices closing the circuit through the second named operating relay during the second operation. 4. An electric circuit controlling system comprising a plurality of operating relays, normally open circuits therefor, a main line, devices for causing the operation of one of said operating relays, preparing the circuit for a second operating relay, and partially preparing a circuit for a third operating relay upon an initial operation of said devices, said devices serving to break the circuit of the first named operating relay, and partially complete the circuit for the third named operating relay upon the commencement of a second operation of said devices, said devices closing the circuit through the second named operating relay during the second operation, and electrically operating devices and circuits there for controlled by the first named devices for holding said operating relays energized, and for rescuing the operated relays, and devices to normal upon the termination of the final of a succession of operations of said firstnamed devices.

5. An electric circuit controlling system' intense and electrically operating devices and circuits therefor controlled by the first named devices for holding said operating relays energized, and for causing the breaking of all circuits of the system that are controlled by signals on the main line upon the termination of the final of a succession of signals on the main line.

6. An electric circuit controlling system comprising a plurality of operating relays, one of said relays having a circuit normally ready for closing, the other of said relays having normally open unprepared circuits, a main line, and devices for causing the immediate operation of the first named relay upon the initial operation of said devices, and the preparation of a circuit for a second operating relay and partial preparation of a circuit for a third operating relay upon said operation oi said devices.

7. An electric circuit controlling system comprisinga plurality of operating relays, one of said relays having acircuit normally ready for closing, the other of said relays having normally open unprepared circuits, a main line, and devices for causing the immediate operation of the first named rclay upon the initial operation of said devices and the preparation of a circuit for a second operating relay and partial preparation ofia circuit for a third operating relay upon said operation of said devices, said devices breaking the operating circuit of the first named operating relay and partially completing the circuit "for the third named operating relay upon the conunencement of a second operation of said devices.

Q. an electric circuit controlling system comprising a plurality of operating relays, one oi said relays having a circuit provided with a normally open contact, normally open unprepared circuits for other operating relays, one of said circuits being provided with a contactassociated with the first named contact, and another of said circuits being common to the first named contact, a main line, a controlling relay controlled by signals on the main line, the armature of said relay being adapted to close circuits at said contacts, devices for con trollingthe circuits of said operating relays, circuits for said devices having a contact to be engaged by said armature and normally out of circuit therewith, said armature being adapted to complete the circuit of the first named operating relay at its said contact upon the production of a signal on the main line and to also close circuit of said devices at their said contact to cause the preparation of the circuit for a second operating relay through the second named contact and partially prepare the circuit for a third operating relay at said first named contact upon the commencementof a second signal on the line, said signal causing said armature to complete the circuit of the second named operating relay.

9. An electric circuit controlling system comprising a plurality of operating relays, one of said relays having a circuit provided with a normally open contact, normally open unprepared circuits for other operating relays, one of said circuits being provided with a contact associated with the first named contact, and another of said circuits being connected to the first named contact, a main line, a controlling relay controlled by signals on the main line, the armature of said relay being adapted to close circuits at said contacts, devices for controlling the circuits of said operating relays, circuits for said devices having a contact to be engaged by said armature and normally out of circuit therewith, said armature being adapted to complete the circuit of the first named operating relay at its said contact upon the production of a. signal on the main line and to close circuit of said devices at their said contact to cause the preparation of the circuit for a second operating relay through the second named contact and partially prepare the circuit for a third operating relay at said first named contact upon the cornmenceinent of a second signal on the line, said signal causing said armature to complete the circuit of the second named operating relay, and electrically operating devices and circuits therefor controlled by the first named devices for holding said operating relays energized and for restoring the operated relays and devices to normal upon the termination of the final of asuccession of signals on the main line.

10. An electric circuit controlling system comprising a plurality of operating relays, one of said relays having a circuit provided with a normally open contact, normally open unprepared circuits for other operating relays, one of said circuits being provided with a contact associated with the first named contact, and another of said circuits being common to the first named contact, a main line, a controlling relay controlled by signals on the main line, the armature of said relay being adapted to close circuits at said contacts, switching relays tor controlling the circuits of the operating relays, one of said switching relays having a normally open circuit provided with a contact adapted to be engaged by said armature upon the production of the first signal of a succcssion oi signals on the main lincfsaid switching relay being ar'anged upon the closing of the said contact of its circuit to close the circuit of a second operating relay to-the-"'second named contact, another of said switching relays having a circuit controlled by the first named switching relay adapted to be closed by the first named switching relay, but establishing a shunt for,

the second named switching relay throu'h,

the contact of its circuit controlled by'sald. armature, the breaking of the circuit at said armature upon the commencement of a sec.

ond signal on the main line causing the secend named switching relay to be operatedto close the circuit of a third operating relay to the first named contact, the completion of such movement of the armature closing the circuit therewith at the second named contact for the second named operating relay.

1 1. An electric circuit controlling system comprising a plurality of operatingrelays, one of said relays having a circuit provided with a normally open contact, normally open unprepared circuits for other operating relays, one of said circuits provided with a contact associated with the first named con tact, and another of said circuits being com- 111011 to the first named circuit, a main line, a controlling relay controlled by signals on the main line, the armature of said relay being adapted to close circuits at said contacts, switching relays for controlling the. circuits of the operating relays, one of sald' switching relays having a normally open circuit provided with a contact adapted to be engaged by said armature upon the production of the first signal of a succession of signals on the main line, said switching relay being arranged upon the closing of the said contact of its circuit to close the circuit of a second operating relay to the sec- 0nd named contact, another of said switching relays havirg a circuit controlled by the first named switching relay adapted to be closed by the first named switching relay but establishing a shunt for the second named switching relay through the contact of its circuit controlled by said armature,

the breaking of the circuit at said armature upon the commencement of a second signal on the main line causing the second namedswitching relay to be operated to close the circuitof a thir operating relay to the first named contact, the completion of such;

movement of the armature closing the cmcuit therewith at the second named contact for the second named operating relay, and electrically operating devices andclrcuits therefor controlled by the switching relays for holding said operating relays energ sed; and for restoring the operated relays to not '1", nlal upon the termination of the filial of a succession of si als on the main line.

- 12. An electric circuit controlling system comprising a plurality of operating relays, one of said relays having a circuit provided mon to one-or more other operating relays, normally open unprepared circuits for oneor with anornially open contact which is conemore other operating relays and having a eonn'non contact associated with the first named contact, a main line, a controlling relay controlled by signals on the main line, the arniaturc ol Paid relay lieiup; adapted to close circuits at said contacts, switching 17elays for controlling the circuits of the op crating relays, normally o 'mn circuits for said switching rela having a coini'non contact to be controlled by the ari'i'iature ot the n'rain line relay, the arniaturcs of said switching relays being adapted to controlv the circuits oi corrc" vending operating relava, and to su-izccsaii'ely control the eircu of the o e aye, a relay i l having a circuit controlled loy one of the switching relays and by the main line relay, a relay 1 having its circuit controlled by the armature of thc relay E, and a clearing relay having a normally open circuit controlled by the ari'nature of relay 13. An electric circuit coii'lrollii'ig system coi'nprising a plurality of operatiing rel one of said relaya having a circuit provided with a normally open contact which coniinon to one or more other operating relays, nori'nally open a'inprcpared circuit; for one or more other operating; relays and having a common contact associated with the lirct. nained contact, a main line, a controlling re av controlled by mgnals on the main line, the hrniature of said relay being adapted to close circuits at said contacts, suit, ,lf ire- .laye cont? lling; the circuits of the op eriating: rel a, norn'ially open circuits for aid Silltt'lllllg relays ha ing a common con-- tact to be controlled by the armature oi? the main line relay, the armature; said switching relays being adal'ited to control :he circuits of C(WI'USTJOHlllllg ope ating reays and to euccc, l tiol the circuits )5 the switching rel ys, a relay having a yornially open circuit provided with connornially closed by the ar'natnres oil.

I i relays, (said armadapted to ircal; such contacts 5 circui o relay corres ending energihed opy l) having a circuit controlled by one the SVllichliif); relays and by the main line relay, a relay l havlog; ilsi circuit controlled by the arn'iature oi? relay l5, and clearing relay having a normally open circuit; controlled by the arznaturn oi relay is, the armature of the clearing ia; lining; included in the circuit ol relay i td bleak the circuits of rela l9 and l l.

chm.

the

relay, a 'rela M L LJ; 1--

ltr. comprising-a plurality of ope zitixig relays, one ot laid relays: having a circuit provided with a normally open contact which is CUlllu fill to one or nore other operating relays, normally open imprepal'ed circuits tor one or more other operating relays and having a eonnnon contact associated with the first.

weaned contact, a main line, a controlling in electric circuit controlling system to ouceessively control the circuits of the SWltCllllg relays, a relay ll having a normally open circuit provided with contacts normally closed by the armatures of certain of the operating relays, said annatures being adaptee to break such contacts and close the circuit of the holding relay through the corresponding energized operating relay, the circuit of said relay'H being connected with the arniaturcs of other of said op erating relays, said r lays when energized closing the circuit through the corresponding energized operating relay, a relay E having a-circu'it controlled by one of the switching rel ya and by the main line rel a relay l havi: its circuit controlled the armature of relay 1*), and a clearing relay having a normally open circuit controlled by the armature of relay i the arinature of the clearing relay being included in the circuit of relay H to break the circuits of relays l and An. cicc'ric circuit controlling system comprisin plurality of operating relays, one of said re ays havi a circuit provided -with a normally open contact which is common to one or more other operating relays, normally open uin'ircparcd circuits for one or more other operating relays and having;- a connnon coi'itaet associated with the first naz'ned contact, a main line, a controlling relay controlled by sigralo on the main line, the armature f said relay being, adapted to close circuits at said contacts, switching relays for controlling the circuits of the operating rclr normally open circuits for said swilcliinzr relays having a con'nnon contact to he controlled by the ari'nature of the main line relay, the ariuatures of said ,-f\.ll' flll3l relays lining adapted to control the circuits of corrtsponding operating rel" and to Slh'jct uively control the circuits oi, the switching;- relay a relay H having a normally open circuit provided with contacts normally closed by thearmatures oi" ain oi the, :nierating relays, said armatures lining adapted to break such contacts e named operating relays each includnamed group ing a relay, magnets having their circuits controlled relays, a relay E having a circuit controlled by one of the switching relays and by the main line relay, a relay F having its circuit controlled bythe armature of the relay E, and a clearin relay having a' normallyopen circuit contro led by the armature of relay F, the armature of clearing relay L being included in the circuit of relay H to break the circuits of relays E, F and H.

16. An electric circuit cdntrolling system comprising a group, of relays havmg'normal y opencircuits, means to control the circuits of said relays,a relay controlled by any of the first named relays, another relay controlled by the cooperative action of some of the relays of the'iirst named group, such second named relays controlling circuits of magnets, certain of the relays of the first controlling contacts for said magnets.

17. A circuit controlling systemcompris;

ing a group of relays, 'sai group having a plurality of sections compnsing each .asplurrality of relays, magnets controlled by said relays, a second group of relays, one of the relays of thesecond group being controlled by relays individually of the first group and another relay of the second group being controlled by the collective action of one section of relays of the first named group, and a third group of relays, the relays of the third named group causing circuits to be utilized as organized bythe operation of relays of the first named group, relays of the third group together controlling the time before actual completion of the circuits through the magnets controlled by the relays of the first group.

18. A circuit controlling system comprising a group of relays, said group having a plurality of sections comprising each a plurality of relays, magnets controlled by said relays, a second group of relays, one of the.

relays of the second grou being controlled by relays individually of t e first group and respectively by t e last named another relay of the second group trolled by the collective action 0 one section of relays of the first named group, and a.

third group of relays, the relays of the third named group causing circuits to be utilized as organized by the operation of relays of the first named group, relays of the third group together controlling the time before actual completion of the circuits through the magnets controlled by the relays of the first group, a relay of the third group controlling the time during which the circuit is completed through the magnets controlled by the relays of the first group.

19. A circuit controlling system comprising a group of relays, said group havin a. plurality of sections comprismgjeacha p urality of relays, magnets controlled by said relays, a second group of relays, one of the relays of the second group being controlled by relays individually of the first group and anotherrch y of the second grou being con trolled by the collective action 0? one section of relays of the first named group, and a. third group of relays, the relays of the third named group causing circuits to be'utilized as organized by the operation of relays of the first named group, relays of the third group together controlling the time Before actual completion of the circuits through the magnets controlled by the relays of the first group, a relay of the third group controlling the time during which the clrcuit is completed through the magnets controlled by the relays of the first group, said relay of the third group controlhn the time during which the circuits 0 the relays of the first group are rendered inoperative after the operation of the magnets controlled by the relays of the first group.

Signed at New York city, in the county of New York, and State of New York, thisbeing con- 7 

